Home / 904,927.80-1,355,423.40-727,780.80

Finding the Fourth Proportional to 904,927.80, 1,355,423.40 and 727,780.80

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Solution

The fourth proportional to 904,927.80, 1,355,423.40 and 727,780.80 is: 1,090,088.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,927.80 : 1,355,423.40 = 727,780.80 : x
  2. Step 2: Convert to fraction form
    904,927.80/1,355,423.40 = 727,780.80/x
  3. Step 3: Cross multiply
    904,927.80x = 1,355,423.40 × 727,780.80
  4. Step 4: Simplify right side
    904,927.80x = 986,451,126,390.72
  5. Step 5: Solve for x
    x = 986,451,126,390.72/904,927.80
  6. Step 6: Final answer
    x = 1,090,088.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.